Simple in design but high in performance, this watch runs on solar power so you never have to worry about a battery change. Brand: Casio Dial Color: White Strap: Stainless steel Clasp: Foldover Movement: Quartz Water Resistance: 50m Case Width: 36.5mm Case Thickness: 9.6mm Bracelet Dimensions: 205mm long; 18mm wide Model No.: MTPS100D-7BV Special Features: Powered by light (natural and artificial) for a free and limitless power supply; date display; alarm Jewelry photos are enlarged to show detail.